.application-page{font-family:PingFang SC,-apple-system,BlinkMacSystemFont,sans-serif;min-height:100vh;display:flex;flex-direction:column;background-color:#eee}.app-header{background-color:#3a336d;color:#fff;width:100%;height:80px;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px rgba(0,0,0,.1)}.header-content{width:100%;max-width:1440px;padding:0 80px}.logo-section{display:flex;align-items:center;text-decoration:none;transition:all .3s ease}.logo-section:hover{transform:translateX(-5px)}.logo-icon{width:32px;height:32px;margin-right:12px}.logo-title{font-size:20px;font-weight:600;color:#fff;margin:0;letter-spacing:.5px}.app-main{flex:1;display:flex;justify-content:center;padding:60px 20px}.app-container{width:100%;max-width:800px;animation:fadeInUp .6s ease-out}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.app-hero{text-align:center;margin-bottom:48px;animation:fadeIn .8s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.hero-icon{font-size:64px;margin-bottom:24px;animation:bounce 2s infinite}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.hero-title{font-size:36px;font-weight:700;color:#3a336d;margin-bottom:16px;letter-spacing:-.5px}.hero-subtitle{font-size:18px;color:#595959;line-height:1.6;max-width:600px;margin:0 auto}.dataset-type-badge{display:inline-flex;align-items:center;gap:8px;margin-top:20px;padding:10px 24px;background:linear-gradient(135deg,#423b76,#6a41bc);border-radius:24px;box-shadow:0 4px 12px rgba(66,59,118,.3);animation:fadeIn .5s ease-out .3s backwards}.badge-label{font-size:14px;color:hsla(0,0%,100%,.8);font-weight:500}.badge-value{font-size:16px;color:#fff;font-weight:700;letter-spacing:1px}.app-form{background:#fff;border-radius:16px;padding:48px;box-shadow:0 4px 24px rgba(0,0,0,.08);transition:all .3s ease}.app-form:hover{box-shadow:0 8px 32px rgba(0,0,0,.12)}.form-group{margin-bottom:32px;animation:slideIn .5s ease-out backwards}.form-group:first-child{animation-delay:.1s}.form-group:nth-child(2){animation-delay:.2s}.form-group:nth-child(3){animation-delay:.3s}.form-group:nth-child(4){animation-delay:.4s}@keyframes slideIn{0%{opacity:0;transform:translateX(-20px)}to{opacity:1;transform:translateX(0)}}.form-label{display:flex;align-items:center;font-size:16px;font-weight:600;color:#3a336d;margin-bottom:12px;gap:8px}.label-icon{font-size:20px}.required{color:#ff4d4f;margin-left:4px}.form-input,.form-textarea{width:100%;padding:14px 18px;font-size:16px;color:#191537;background:#fff;border:2px solid #e0e0e0;border-radius:12px;transition:all .3s ease;font-family:PingFang SC,-apple-system,BlinkMacSystemFont,sans-serif;box-sizing:border-box}.form-input:hover,.form-textarea:hover{border-color:#9c99b5}.form-input:focus,.form-textarea:focus{outline:none;border-color:#423b76;box-shadow:0 0 0 4px rgba(66,59,118,.1);transform:translateY(-2px)}.form-input::placeholder,.form-textarea::placeholder{color:#bfbfbf}.form-textarea{resize:vertical;min-height:140px;line-height:1.6}.char-count{text-align:right;font-size:13px;color:#8c8c8c;margin-top:8px}.form-actions{display:flex;gap:16px;margin-top:40px;animation:slideIn .5s ease-out .5s backwards}.btn-primary,.btn-secondary{flex:1;padding:16px 32px;font-size:16px;font-weight:600;border:none;border-radius:24px;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;box-sizing:border-box}.btn-primary{background-color:#423b76;color:#fff}.btn-primary:hover:not(:disabled){background-color:#6a41bc;transform:translateY(-2px);box-shadow:0 6px 20px rgba(66,59,118,.3)}.btn-primary:active:not(:disabled){background-color:#4e2d90;transform:translateY(0)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{background-color:#fff;color:#423b76;border:2px solid #423b76}.btn-secondary:hover{background-color:#423b76;color:#fff;transform:translateY(-2px);box-shadow:0 6px 20px rgba(66,59,118,.2)}.btn-secondary:active{transform:translateY(0)}.btn-arrow{font-size:20px;transition:transform .3s ease}.btn-primary:hover .btn-arrow{transform:translateX(4px)}.spinner{width:16px;height:16px;border:2px solid hsla(0,0%,100%,.3);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.success-container{background:#fff;border-radius:16px;padding:60px 48px;text-align:center;box-shadow:0 4px 24px rgba(0,0,0,.08);animation:scaleIn .5s ease-out}@keyframes scaleIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}.success-icon{width:80px;height:80px;background:linear-gradient(135deg,#52c41a,#73d13d);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:48px;color:#fff;margin:0 auto 32px;animation:successPulse 1.5s ease-out}@keyframes successPulse{0%{transform:scale(0);opacity:0}50%{transform:scale(1.1)}to{transform:scale(1);opacity:1}}.success-title{font-size:32px;font-weight:700;color:#3a336d;margin-bottom:16px}.success-message{font-size:16px;color:#595959;line-height:1.8;margin-bottom:40px;max-width:500px;margin-left:auto;margin-right:auto}.success-message strong{color:#423b76;font-weight:600}.success-actions{display:flex;gap:16px;justify-content:center}.success-actions .btn-primary,.success-actions .btn-secondary{flex:0 1 auto;min-width:200px}.app-footer{background-color:#3a336d;color:#9c99b5;text-align:center;padding:24px 20px;font-size:14px;margin-top:auto}.app-footer p{margin:0}@media (max-width:768px){.header-content{padding:0 24px}.logo-title{font-size:16px}.app-main{padding:40px 16px}.app-form,.success-container{padding:32px 24px}.hero-title{font-size:28px}.hero-subtitle{font-size:16px}.form-actions,.success-actions{flex-direction:column}.btn-primary,.btn-secondary{width:100%}.success-actions .btn-primary,.success-actions .btn-secondary{min-width:auto;width:100%}}@media (max-width:480px){.hero-icon{font-size:48px}.hero-title{font-size:24px}.success-icon{width:64px;height:64px;font-size:36px}.success-title{font-size:24px}}.dataset-browser{background:#fff;border-radius:16px;padding:32px;box-shadow:0 4px 24px rgba(0,0,0,.08)}.breadcrumb{display:flex;align-items:center;gap:8px;padding:16px;background:#f5f5f5;border-radius:12px;margin-bottom:24px;font-size:14px;color:#595959;flex-wrap:wrap}.breadcrumb-item{font-weight:500}.breadcrumb-separator{color:#bfbfbf;margin:0 4px}.back-btn{margin-left:auto;padding:6px 16px;background:#423b76;color:#fff;border:none;border-radius:20px;font-size:13px;font-weight:600;cursor:pointer;transition:all .3s ease}.back-btn:hover{background:#6a41bc;transform:translateX(-2px)}.selected-info{padding:12px 16px;background:linear-gradient(135deg,#e6f7ff,#d9f7be);border-radius:12px;margin-bottom:20px;animation:slideInDown .3s ease-out}@keyframes slideInDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.selected-count{color:#389e0d;font-weight:600;font-size:14px}.file-list{min-height:300px;max-height:500px;overflow-y:auto;border:2px solid #f0f0f0;border-radius:12px;padding:12px}.file-list::-webkit-scrollbar{width:8px}.file-list::-webkit-scrollbar-track{background:#f5f5f5;border-radius:4px}.file-list::-webkit-scrollbar-thumb{background:#bfbfbf;border-radius:4px}.file-list::-webkit-scrollbar-thumb:hover{background:#999}.file-item{padding:16px;border-radius:10px;margin-bottom:8px;transition:all .3s ease;animation:fadeInLeft .3s ease-out backwards}.file-item:first-child{animation-delay:.05s}.file-item:nth-child(2){animation-delay:.1s}.file-item:nth-child(3){animation-delay:.15s}.file-item:nth-child(4){animation-delay:.2s}.file-item:nth-child(5){animation-delay:.25s}@keyframes fadeInLeft{0%{opacity:0;transform:translateX(-20px)}to{opacity:1;transform:translateX(0)}}.file-item.directory{background:#f5f4f6;cursor:pointer}.file-item.directory:hover{background:#e6e4f0;transform:translateX(4px)}.file-item.file{background:#fafafa}.file-item.file:hover{background:#f0f0f0}.file-item.selected{background:linear-gradient(135deg,#e6f7ff,#bae7ff);border:2px solid #1890ff}.file-item-content{display:flex;align-items:center;gap:12px}.file-icon{font-size:24px;flex-shrink:0}.file-info{flex:1;display:flex;flex-direction:column;gap:4px}.file-name{font-size:15px;font-weight:600;color:#191537}.file-meta{font-size:13px;color:#8c8c8c}.arrow{font-size:20px;color:#423b76;transition:transform .3s ease}.file-item.directory:hover .arrow{transform:translateX(4px)}.empty-state,.loading-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 20px;color:#8c8c8c}.spinner-large{width:48px;height:48px;border:4px solid rgba(66,59,118,.1);border-top-color:#423b76;border-radius:50%;animation:spin .8s linear infinite;margin-bottom:16px}.empty-icon{font-size:64px;margin-bottom:16px;opacity:.5}.empty-state p{font-size:16px;color:#8c8c8c}.browser-actions{display:flex;gap:16px;margin-top:32px;padding-top:24px;border-top:2px solid #f0f0f0}.selected-datasets-summary{background:#fff;border-radius:16px;padding:24px;margin-bottom:32px;box-shadow:0 2px 12px rgba(0,0,0,.06);animation:fadeIn .5s ease-out}.selected-datasets-summary h3{font-size:18px;font-weight:600;color:#3a336d;margin-bottom:16px}.selected-list{display:flex;flex-direction:column;gap:12px}.selected-item{display:flex;align-items:center;gap:12px;padding:12px 16px;background:#f5f4f6;border-radius:10px;transition:all .3s ease}.selected-item:hover{background:#e6e4f0;transform:translateX(4px)}.item-icon{font-size:20px;flex-shrink:0}.item-name{flex:1;font-size:14px;font-weight:500;color:#191537;word-break:break-all}.item-size{font-size:13px;color:#8c8c8c;font-weight:600}@media (max-width:768px){.dataset-browser{padding:24px 16px}.breadcrumb{font-size:12px}.file-list{max-height:400px}.file-name{font-size:14px}.browser-actions{flex-direction:column}}